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5 Cluster Environment InstallationsA cluster installation uses Oracle Universal Installer to install software on the nodes of a cluster that are network reachable and bound together by Oracle clusterware. You can use OUI to extend the Oracle home of a product installation to include additional nodes on the cluster. This chapter includes the following sections: Installing ClusterwareClusterware contains components to control the operating system and clusterware services required for managing the nodes on the cluster. In order to create the cluster, you must install Oracle Clusterware software (for example, CRS) before you can install the product software (for example, RAC). During the clusterware installation, OUI prompts you to enter the nodes you wish to include in the cluster in the Cluster Configuration Information page. After the cluster is formed, you can install cluster-ready Oracle products on the cluster; for instance, an Oracle Real Application Clusters Database or Oracle Application Server infrastructure.
Pre-Installation TasksBefore you can install in a cluster environment, you may need to perform the following pre-installation tasks on each node that is part of the cluster:
Installing Product Software on a ClusterOnce clusterware has been installed and pre-installation tasks have been completed, you are ready to install the cluster-ready product on the cluster. To do this, you may use OUI in interactive mode, command line mode, or silent mode using a response file. Cluster DetectionWhen OUI detects that the destination you entered on the File Locations page is part of a cluster, one of two dialogs will appear:
Availability CheckingWhen the user clicks Next on the Specify Hardware Installation Mode page or Selected Nodes page, OUI performs the following availability checks on the nodes:
If all selected nodes are available, the installation process continues to the next step. If a node (or nodes) is not available, the page is re-displayed with a Status column indicating the results of the check. The user must fix the problem or choose another set of nodes in order to proceed. If any of the remote nodes is unreachable, check if those nodes are up and running and if they are properly network configured. If either the inventory or the Oracle home is not writable, check for the appropriate permissions on the remote nodes for these directories. Cluster InstallationIn a typical cluster installation, when clusterware is present, Universal Installer installs the Oracle software onto the node on which OUI is running, then propagates the Oracle home from the local node installation to the other nodes that are part of the installation. If the cluster is Cluster File System (CFS) or Network File System (NFS) mounted, then OUI does not propagate the Oracle home to other nodes, as files are shared across nodes and the installation will exist on the shared disk.
Adding Nodes to a Cluster InstallationUse OUI to extend the Oracle home of a product installation to include additional nodes on the cluster. Extending an Oracle home to include new nodes is a two-step process:
To add new nodes to either the clusterware or product Oracle home, invoke the addNode.sh (UNIX) addNode.bat (Windows) Adding a node copies the necessary software to the new node and configures the new Oracle home. You can invoke the If you have already installed the Oracle home in the correct location on the remote nodes and wish to group that home with an existing cluster Oracle home in the inventory without copying software from one node to the others, invoke the addNode.sh -noCopy (UNIX) addNode.bat -noCopy (Windows) Command Line Options for Cluster Installs (UNIX Only)When using OUI in suppressed or silent mode, specify the path to the remote copy or shell program on the local node to use for cluster installs using the following optional flags: -remoteShell <path to program> -remoteCopy <path to program> The default for |
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